Transmission-gearing



C. E. MILLS.

A TRANSMlSSIQN G EARlNG. APPLICATION FILED MAYZB. 1918.

1 ,330,74:O., Patented Feb. 10, 1920 2 SHEETS-SHEET l.

C. E. MILLS.

.IRANSMISSION BEARING.

APPHCANON FILED MAY 29. 1 918.

Patented 1* eb. 10, 1920.

2 SHEETSSHEET 2.

gears 14; and 15,

CLAUD E. MILES, G1? DES MOI HES. IOWA TRANSMISSIGN-GEARING.

Specification of Letters iatent.

Patented Feb. '10, 1920.

Application filed May '29, 1918. Serial No. 237,282.

ple construction having a minimum number of parts and amount of material.

A. further object is to provide such a transmission device whereby rotation of one shaft may be imperted to otheiushefts in diil'ereirt directions for running difl'erent kinds of mechinery.

Still a further object is to provide a suit eble casing "for such e gearing.

With these and other obiects in View my invention consists in the construction, arrangement end combination oi the various parts of the device, whereby the objects contempleted are atteined, es hereinafter more fully set forth, pointed 01min my claim and illustrated in the accompanying drawings, in which:

Figure 1 shows a top or plan View. of a transmission gearing embodying my inverp tied-1' v v 1 Fig. 2 shows a side elevation of thesame inclosed Within e gear casing.

Fig. 3 shows edeteil, sectional view taken fee the line 3 -3 of Fi 1 Fig. shows a detail sectional view taken on the line 47"4: of Fig. 3; and v v Fig. 5- shows a vertical, sectionalview through the clutch.

In he accompanying drawings 1 have used the reference numeral 10 to indicate generally the lower part of agear casing which forms a support and protection for my improved transmission gearing.

Extending into one end of the gear casing 10 near the lower portion thereof isaisha t't 11 which may be connected with on engine or other suitable source of power. lhe shaft 11 is mounted insuitcble bearings 12 snd 13.

0n the shaft 11 are spaced herringbone Above the shaft 11 there is extended through the 11 per portion oi? one of the gear closings a Sheri; 16 parallel with the shaft 11.

which is of verv On the shaft 16 are loosely mounted herringbone gears 17 and 3.8; which are meshed with the gears M end 15. I i

Formed on the gears 17 and 18 are clutch members 19 and 20. Slidably but nonrotebably mounted on the shaft 16 bet-ween the gears 17 and 18 is a double clutch member illhaving a central groove 22, in which are received pins 23 extending inwardly from the forked arms 24 on a clutch controlling lever 25.

By shifting the double clutch 21 rotation of the shaft 11 may be imported tothe shaft- 162d; difi'erent speeds.

The gears l? and 18 are always in mesh with th'e etire 14: and 15, and I em, therefore, enabled to, use the herring-bone gears,

which are preferable for the purpose.

The shaft 16 is mounted in suitable beerings 26 and 2'? inside of the gear casing.

1 On the shaft 16 is a beveled gear 28 which lllQShQS with :i beveledgear 29, mounted on a shaft 30 which projects through the casing 10, and has on its outer end a suitable gem ing device such as the belt wheel 31, where-- by power may be transmitted to various pieces of machinery.

()n the opposite end of the shaft" 16 from the gear 28 is "a cone clutch member Suitably mounted in a bearing 33 is a short shaft 34, one endjof which is rotatably rcceived-in the end of the shaft 16, as illustrated in Fig. .5.

Fixed on the shaft 34 is a collar 35.

Slidably? but non-'rototeblymounted" on the shaft 3 5: is a coacting cone clutch meniber 36 hailing a hub 37, on the inside of which is a. sprlng 38 which bearsagainst the collar 35, alnd tends to yieldingly hold the v clutch members 36 and .32', in frictional engagement with each otherl The hub 37 is formed with an annular groove 39 which receives the ins :0 on arms '41 mounted on a rock she 4-2, which is operated by a lever 43 for controlling'thc clutch member 36. y

On the opposite end of the shaft 31 from the cone clutch member 36' is a beveled gear 44..

Spaced froni the beveled gcer ii is a transverse shaft 45 hafing' e. squared end 4-6 received in an: angular socket 47, so that said shaft 45 may slide longitudinally but may not rotate.

Received in the bearin e' &8 end of the shaft is c not which is having one controlled by a lever 50. The nut {L9 is internally screw-threaded to coact with exter-: nal screw threads on the shaft 45.-

, Fixed on the shaft 45 is a sleeve 51 on which are spaced beveled gears and 53,

designed to selectively mesh with the gear 44 in different positions of the sleeve 51. On the sleeve 51 is a wide gear 54f which meshes with a gear 56 on a transverse shaft-57.

The parts last described form a reverse gearing-mechanism which is more fully described and claimed in my co-pending application Serial Number, 235,632.

In the use of the transmission gearing,

herein described, assume that the shaftll is the engine shaft or is connected with the will be imparted from the gear 17 to the tion.

clutch member 21, and thence to the shaft 16.

For transmitting motion at a different speed the clutch member 21 can be shifted to position for engaging theclutch memher on the gear 18. The shaft 30 is rotated whenever the shaft 16 is rotated, but simply operates as an idler unless the gear 31 is 3011118011661 with other machinery.

. When the shaft 16 is rotated and the clutch members 32-and 36 are in coacting position, rotation is imparted to'the shaft 34 and the gear 44 thereon.

The operation of the reverse mechanism is the same as described in my hereinbefore mentioned co-pending application.

It will be noted that the gear 31 may be run at two speeds and thatthe gear 56 may be run at two speeds in either direc- I consider one of the important features of my invention, the arrangement of the gear casing parts. The left portion of the gear casing member 10 has a top or cover member 58 provided with side flanges 59 60 on the gear casing 10, and designed to be secured thereto by bolts or the like.

The gear casing cover 58 has at its righthand end a flange 61. 7

Above the central portion of the gear casing member 10, which receives the clutch members 32 and 36, is a second top or cover member 63 having flanges 64 similar in arrangement to the flanges 59 for reacting with the flange 60, and having at its lefthand end 'a flange 65, adapted to be bolted to the flange 61, and at its right-hand end an inturned flange 66.

Adjacent to the cover 63 is another gear cover member 67 having a flange 68 coacting with the flange 60, and a flange 69 coacting with the flange 66.

It will be seen that these various gear cox'er members may be very quickly and easily removed for having access to different parts of the operative mechanism.

The lower gearcasing member forms a support for the various shafts, and the gear casing members are so arranged that the operative parts may be run in oil to reduce the wear to a minimumQ- I claim:

In a device of the class described, 'a gear casing member, a shaft extended into-one end of said gear casing member, a pair of spaced gears thereon, a second shaft received within said gear casing n1ember, parallel with said first shaft, a pair of gears loosely mounted on the second shaft in mesh With gears on the first shaft, said second pair of gears having clutch members thereon, a double clutch member slidably but non-rotatably mounted on said second shaft between I said first described clutch members, a third shaft operatively connected with said second shaft having a gearing device thereon, a fourth shaft alined with said second shaft and said gear-casing member, coacting clutch devices on said second and fourth shafts, whereby rotation may be imparted from the second to the fourth shaft, a beveled gear on said fourth shaft, and a reverse gearing mechanism operatively connected with said last gear.

Des Moines, Iowa, May 10, 1918.

CLAUD E. MILLS. 

